Planetary hours
in Mérida.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Tuesday, 21 July 2026: day of Mars
- Sunrise
- 05:28
- Sunset
- 18:41
- Next sunrise
- 05:28
A day hour lasts 1h 06m; a night hour, 54 min. Local time (America/Merida).
Day
- 1♂︎ Mars05:28 – 06:34
- 2☉︎ Sun06:34 – 07:40
- 3♀︎ Venus07:40 – 08:46
- 4☿︎ Mercury08:46 – 09:52
- 5☽︎ Moon09:52 – 10:58
- 6♄︎ Saturn10:58 – 12:04
- 7♃︎ Jupiter12:04 – 13:10
- 8♂︎ Mars13:10 – 14:17
- 9☉︎ Sun14:17 – 15:23
- 10♀︎ Venus15:23 – 16:29
- 11☿︎ Mercury16:29 – 17:35
- 12☽︎ Moon17:35 – 18:41
Night
- 1♄︎ Saturn18:41 – 19:35
- 2♃︎ Jupiter19:35 – 20:29
- 3♂︎ Mars20:29 – 21:23
- 4☉︎ Sun21:23 – 22:17
- 5♀︎ Venus22:17 – 23:11
- 6☿︎ Mercury23:11 – 00:05
- 7☽︎ Moon00:05 – 00:58
- 8♄︎ Saturn00:58 – 01:52
- 9♃︎ Jupiter01:52 – 02:46
- 10♂︎ Mars02:46 – 03:40
- 11☉︎ Sun03:40 – 04:34
- 12♀︎ Venus04:34 – 05:28
Other cities · Mexico
Questions
How are the planetary hours calculated in Mérida?
On Tuesday, 21 July 2026, the Sun rises at 05:28 and sets at 18:41: the day lasts 13h 13m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:28, lasts 10h 47m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mars, from 05:28 to 06:34: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.